Skip to content
EXYS
Back to the CVEs

CVE-2026-86144

7.8, high

In xinclude in libxml2 before 2.15.4, xmlXIncludeProcess and xmlXIncludeProcessTree do not propagate parseFlags

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
7.8, high high CVSS v3.1
EPSS, next 30 days
0.2% higher than 7.7% of scored CVEs
Exploitation
No public evidence
Published
5 Sept 2026a month ago

Description

In xinclude in libxml2 before 2.15.4, xmlXIncludeProcess and xmlXIncludeProcessTree do not propagate parseFlags. This has security relevance for, for example, the XML_PARSE_NONET flag, if (without it) a custom resource loader accesses the internet and triggers XML external entity injection, SSRF, or a denial of service (e.g., for an attacker-controlled internet resource that is intentionally slow).

Details

Vendor
Xmlsoft
Product
libxml2
Weakness
CWE-669 (opens in a new tab)
Status
Analyzed
Updated
15 Sept 2026
Assigner
cve@mitre.org

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References 2

Patches and fixes 1

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Xmlsoft CVEs

Every Xmlsoft CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-86138 Xmlsoft libxml2 Integer Overflow Vulnerability EPSS 0.1% 7.8, high
  • CVE-2026-86139 Xmlsoft libxml2 Integer Overflow Vulnerability EPSS 0.2% 7.8, high
  • CVE-2026-86140 Xmlsoft libxml2 Stack-based Buffer Overflow Vulnerability EPSS 0.2% 7.8, high
  • CVE-2026-86142 Xmlsoft libxml2 Heap-based Buffer Overflow Vulnerability EPSS 0.2% 7.8, high
  • CVE-2026-86143 In xmlIO in libxml2 before 2.15.4, an inconsistency in xmlOutputWriteCallback and xmlBufUse causes negative lengths to reach write… EPSS 0.2% 7.3, high

Beyond this page

Is CVE-2026-86144 in your network?

This page tells you how dangerous CVE-2026-86144 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2026-86144 comes with the devices to patch.

    Learn more about EXYS7600 OCELOT

  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

    Learn more about EXYS7950 KONDRA
Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.